Almost all of them have European surnames, but only ~20% of them have a European ancestor. If you are white, chances are good one of your ancestors came from France, or used a French surname to fool the authorities.
1 AC, or alternating current means the electrical current is alternating directions in a repetitive pattern.  AC is created by generators in power plants, and other sources. This AC current is delivered to our homes and businesses by the power lines we see everywhere.
GCIDE(0.00 / 0 votes)Rate this definition: Alternating current. A current which periodically changes or reverses its direction of flow, especially an electric current that reverses direction sinusoidally, as is used for most domestic and industrial power requirements.